256551076 has 12 divisors (see below), whose sum is σ = 450400972. Its totient is φ = 127865088.

The previous prime is 256551073. The next prime is 256551077. The reversal of 256551076 is 670155652.

It can be written as a sum of positive squares in 2 ways, for example, as 65448100 + 191102976 = 8090^2 + 13824^2 .

It is not an unprimeable number, because it can be changed into a prime (256551073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101205 + ... + 103708.

Almost surely, 2^256551076 is an apocalyptic number.

It is an amenable number.

256551076 is a deficient number, since it is larger than the sum of its proper divisors (193849896).

256551076 is a wasteful number, since it uses less digits than its factorization.

256551076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205230 (or 205228 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 256551076 is about 16017.2118672383. The cubic root of 256551076 is about 635.4157081191.

The spelling of 256551076 in words is "two hundred fifty-six million, five hundred fifty-one thousand, seventy-six".